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行程圖（製作）
Author:
maths.ephhk
GeoGebra
EPH HK
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【案例】2018年全国1卷理科12题
直線的斜率
斜率的值
垂直線的斜率
兩位數加法
Discover Resources
繞行
分段移動
Rotation（旋轉）
Copy of Triangular Number
相位角、頻率
Discover Topics
Mathematics
Quadrilaterals
Arithmetic
Conic Sections
Perimeter